All names: Gaia DR3 6904741952225560576, GALEX J203424.9-095535, Gaia DR2 6904741952225560576, UCAC2 28462554, 2MASS J20342492-0955362, DENIS J203424.9-095535, GALEXJ20344-0955, UCAC4 401-124785, TIC 9495646
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 20 34 24.92 | 20 34 24.93 (0.04) | ||
| Declination | -09 55 35.59 | -09 55 36.21 (0.03) | ||
| Spectral type | sdO | sdO | ||
| Effective temperature | [K] | |||
| log(g) | [cgs] | |||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.30 (0.08) | 0.38 (0.05) | |
| Distance | [pc] | 3342.25 (839) | 2642.01 (371) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.938 (0.1) | 2.804 (0.05) | |
| Proper motion (declination) | [mas/yr] | -19.57 (0.08) | -19.486 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.86 (0.02) | |||
| V magnitude | 15.13 (0.01) | |||
| R magnitude | 15.34 (0.2) | |||
| I magnitude | 15.33 (0.04) | |||
| J magnitude | 15.74 (0.08) | 15.74 (0.08) | ||
| H magnitude | 15.81 (0.2) | 15.81 (0.2) | ||
| K magnitude | 15.30 | |||
| u magnitude | ||||
| g magnitude | 14.88 (0.01) | |||
| r magnitude | 15.38 (0.01) | |||
| i magnitude | 15.49 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.05 (0.0007) | 15.03 (0.003) | ||
| BP magnitude | 14.81 (0.01) | |||
| RP magnitude | 15.32 (0.003) | |||
| Pan g magnitude | 14.89 (0.001) | |||
| Pan r magnitude | 15.30 (0.001) | |||
| Pan i magnitude | 15.66 (0.003) | |||
| Pan z magnitude | 15.93 (0.003) | |||
| Pan y magnitude | 16.12 (0.004) | |||
| E(B-V) | 0.057 | |||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.